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On 2007-04-23 16:05:55, c_vignesh wrote:
AFAIK : Its apple's mp4 format
yes, and then they don't take off...
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Posted: 2007-04-23 16:22:47
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Hello to all,
To those who are misinformed or in question, m4a is also mp4. it is not proprietary format of apple. It is an INTERNATIONAL standard. m4a or mp4 is just a container.
and if you are talking about itunes audio format then the audio inside the m4a container is AAC. AAC is more advanced (supposed to be) than the old mp3. now if i made you more confused you can go here
(
http://wiki.hydrogenaudio.org/index.php?title=AAC ) for AAC audio info. go here (
http://wiki.hydrogenaudio.org/index.php?title=MP4 ) for mp4 standard. :cheers:
BTW, i use foobar to convert audio files, and i recommend using nerodigital to encode... good luck!
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[ This Message was edited by: Markkreuzz on 2007-04-24 20:46 ]
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Posted: 2007-04-24 21:42:34
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I just love Esato's misinformation regarding anything Apple
M4A, also known as unprotected AAC, was developed jointly by both Apple and the MPEG. It is not a "proprietary" format. Apple doesn't contolr it or own it.
http://en.wikipedia.org/wiki/MPEG-4_Part_14
M4P is simply AAC with FairPlay DRM (protection) added. It can be argued that this is Apple's "proprietary" format. Given iTunes' success, I would say it isn't going away anytime soon.
You never want to convert MP3 straight to AAC, or for that matter, one lossy format directly to another. The resulting sound quality will be terrible. Best to start from the original material (e.g. audio CD, Apple Lossless files) and resample it into AAC directly.
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Posted: 2007-04-24 23:33:02
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mp3-> m4a doesn't nessecarily result in "terrible" sound quality. If you use a high bitrate mp3 you'll hardly notice..and on phone earbuts you won't hear it at all:)
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Posted: 2007-04-25 15:17:40
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I use MediaCoder. It converts the mp3s into m4as with HE-AAC encoding (something similar to the Nero Mp4 encoder) and they sound great also. Actually 80-96kbp\\s .m4a is identical as 128-160kbp\\s .mp3 file, and it uses less disk space also.
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Posted: 2007-04-26 00:33:38
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I use Audio File Format Converter from Easy CD-DA Extractor, it's very easy and I hardly notice between Mp3 128kbps and AAC in 96Kbps
Cheers
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Posted: 2007-04-26 00:56:00
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How do you convert mp3 files into m4a files using iTunes?
I'm not very familiar with the program.
Let me know ASAP
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Posted: 2007-05-05 11:31:26
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